void
db_print_loc(
db_addr_t loc,
task_t task)
{
db_task_printsym(loc, DB_STGY_PROC, task);
}
void
db_print_loc_and_inst(
db_addr_t loc,
task_t task)
{
db_task_printsym(loc, DB_STGY_PROC, task);
db_printf(":\t");
(void) db_disasm(loc, TRUE, task);
}
/*
* Write to file.
*/
void
db_write_cmd(
db_expr_t address,
boolean_t have_addr,
db_expr_t count,
char * modif)
{
register db_addr_t addr;
register db_expr_t old_value;
db_expr_t new_value;
register int size;
boolean_t wrote_one = FALSE;
boolean_t t_opt, u_opt;
thread_act_t thr_act;
task_t task;
addr = (db_addr_t) address;
size = db_size_option(modif, &u_opt, &t_opt);
if (t_opt)
{
if (!db_get_next_act(&thr_act, 0))
return;
task = thr_act->task;
}
else
task = db_current_space();
/* if user space is not explicitly specified,
look in the kernel */
if (!u_opt)
task = TASK_NULL;
if (!DB_VALID_ADDRESS(addr, u_opt)) {
db_printf("Bad address 0x%x\n", addr);
return;
}
while (db_expression(&new_value)) {
old_value = db_get_task_value(addr, size, FALSE, task);
db_task_printsym(addr, DB_STGY_ANY, task);
db_printf("\t\t%#8n\t=\t%#8n\n", old_value, new_value);
db_put_task_value(addr, size, new_value, task);
addr += size;
wrote_one = TRUE;
}
if (!wrote_one)
db_error("Nothing written.\n");
db_next = addr;
db_prev = addr - size;
}
static void
db_force_delete_breakpoint(
db_breakpoint_t bkpt,
vm_offset_t task_thd,
boolean_t is_task)
{
db_printf("deleted a stale breakpoint at ");
if (bkpt->task == TASK_NULL || db_lookup_task(bkpt->task) >= 0)
db_task_printsym(bkpt->address, DB_STGY_PROC, bkpt->task);
else
db_printf("%#X", bkpt->address);
if (bkpt->task)
db_printf(" in task %X", bkpt->task);
if (task_thd)
db_printf(" for %s %X", (is_task)? "task": "thr_act", task_thd);
db_printf("\n");
db_delete_thread_breakpoint(bkpt, task_thd);
}
/*
* Disassemble instruction at 'loc'. 'altfmt' specifies an
* (optional) alternate format. Return address of start of
* next instruction.
*/
db_addr_t
db_disasm(
db_addr_t loc,
boolean_t altfmt,
task_t task)
{
int inst;
char *p;
inst = db_get_task_value(loc, 4, FALSE, task);
db_disasm_pc = loc;
db_disasm_print_symaddr = FALSE;
p = in(inst);
db_printf("%s", p);
if (db_disasm_print_symaddr) {
db_printf(" <");
db_task_printsym(db_disasm_symaddr, DB_STGY_ANY, task);
db_printf(">");
}
dis_done();
return (loc+4);
}
/*
* Disassemble instruction at 'loc'. 'altfmt' specifies an
* (optional) alternate format. Return address of start of
* next instruction.
*/
db_addr_t
db_disasm(
db_addr_t loc,
boolean_t altfmt,
task_t task)
{
int inst;
char *p;
inst = db_get_task_value(loc, 4, FALSE, task);
db_disasm_pc = loc;
db_disasm_print_symaddr = FALSE;
p = in(inst);
db_printf("%s", p);
if (db_disasm_print_symaddr) {
db_printf(" <");
db_task_printsym(db_disasm_symaddr, DB_STGY_ANY, task);
db_printf(">");
}
db_printf("\n"); /* Make sure we have a new line for multiline displays */
dis_done();
return (loc+4);
}
/*
* List breakpoints.
*/
void
db_list_breakpoints(void)
{
register db_breakpoint_t bkpt;
if (db_breakpoint_list == 0) {
db_printf("No breakpoints set\n");
return;
}
db_printf(" No Space Task.Act Cnt Address(Cond)\n");
for (bkpt = db_breakpoint_list;
bkpt != 0;
bkpt = bkpt->link)
{
register db_thread_breakpoint_t tp;
int task_id;
int act_id;
if (bkpt->threads) {
for (tp = bkpt->threads; tp; tp = tp->tb_next) {
db_printf("%3d ", tp->tb_number);
if (bkpt->flags & BKPT_USR_GLOBAL)
db_printf("user ");
else if (bkpt->task == TASK_NULL)
db_printf("kernel ");
else if ((task_id = db_lookup_task(bkpt->task)) < 0)
db_printf("%0*X ", 2*sizeof(vm_offset_t), bkpt->task);
else
db_printf("task%-3d ", task_id);
if (tp->tb_task_thd == 0) {
db_printf("all ");
} else {
if (tp->tb_is_task) {
task_id = db_lookup_task((task_t)(tp->tb_task_thd));
if (task_id < 0)
db_printf("%0*X ", 2*sizeof(vm_offset_t),
tp->tb_task_thd);
else
db_printf("task%03d ", task_id);
} else {
thread_act_t thd = (thread_act_t)(tp->tb_task_thd);
task_id = db_lookup_task(thd->task);
act_id = db_lookup_task_act(thd->task, thd);
if (task_id < 0 || act_id < 0)
db_printf("%0*X ", 2*sizeof(vm_offset_t),
tp->tb_task_thd);
else
db_printf("task%03d.%-3d ", task_id, act_id);
}
}
db_printf("%3d ", tp->tb_init_count);
db_task_printsym(bkpt->address, DB_STGY_PROC, bkpt->task);
if (tp->tb_cond > 0) {
db_printf("(");
db_cond_print(tp);
db_printf(")");
}
db_printf("\n");
}
} else {
if (bkpt->task == TASK_NULL)
db_printf(" ? kernel ");
else
db_printf("%*X ", 2*sizeof(vm_offset_t), bkpt->task);
db_printf("(?) ");
db_task_printsym(bkpt->address, DB_STGY_PROC, bkpt->task);
db_printf("\n");
}
}
}
void
db_print_cmd(void)
{
db_expr_t value;
int t;
task_t task = TASK_NULL;
if ((t = db_read_token()) == tSLASH) {
if (db_read_token() != tIDENT) {
db_printf("Bad modifier \"/%s\"\n", db_tok_string);
db_error(0);
/* NOTREACHED */
}
if (db_tok_string[0])
db_print_format = db_tok_string[0];
if (db_option(db_tok_string, 't')) {
if (db_default_act)
task = db_default_act->task;
if (db_print_format == 't')
db_print_format = db_tok_string[1];
}
} else
db_unread_token(t);
for ( ; ; ) {
t = db_read_token();
if (t == tSTRING) {
db_printf("%s", db_tok_string);
continue;
}
db_unread_token(t);
if (!db_expression(&value))
break;
switch (db_print_format) {
case 'a':
case 'A':
db_task_printsym((db_addr_t)value,
(db_print_format == 'a') ? DB_STGY_ANY:
DB_STGY_PROC,
task);
break;
case 'r':
db_printf("%11r", value);
break;
case 'x':
db_printf("%08x", value);
break;
case 'z':
db_printf("%8z", value);
break;
case 'd':
db_printf("%11d", value);
break;
case 'u':
db_printf("%11u", value);
break;
case 'o':
db_printf("%16o", value);
break;
case 'c':
value = value & 0xFF;
if (value >= ' ' && value <= '~')
db_printf("%c", value);
else
db_printf("\\%03o", value);
break;
default:
db_printf("Unknown format %c\n", db_print_format);
db_print_format = 'x';
db_error(0);
}
}
}
void
db_examine(
db_addr_t addr,
char * fmt, /* format string */
int count, /* repeat count */
task_t task)
{
int c;
db_expr_t value;
int size;
int width;
int leader;
int items;
int nitems;
char * fp;
db_addr_t next_addr;
int sz;
db_examine_prev_addr = addr;
while (--count >= 0) {
fp = fmt;
size = sizeof(int);
width = db_examine_width(size, &items, &leader);
while ((c = *fp++) != 0) {
switch (c) {
case 'b':
size = sizeof(char);
width = db_examine_width(size, &items, &leader);
break;
case 'h':
size = sizeof(short);
width = db_examine_width(size, &items, &leader);
break;
case 'l':
size = sizeof(int);
width = db_examine_width(size, &items, &leader);
break;
case 'q':
size = sizeof(long);
width = db_examine_width(size, &items, &leader);
break;
case 'a': /* address */
case 'A': /* function address */
/* always forces a new line */
if (db_print_position() != 0)
db_printf("\n");
db_prev = addr;
next_addr = addr + 4;
db_task_printsym(addr,
(c == 'a')?DB_STGY_ANY:DB_STGY_PROC,
task);
db_printf(":\t");
break;
case 'm':
db_next = db_xcdump(addr, size, count+1, task);
return;
case 't':
case 'u':
break;
default:
restart:
/* Reset next_addr in case we are printing in
multiple formats. */
next_addr = addr;
if (db_print_position() == 0) {
/* If we hit a new symbol, print it */
char * name;
db_addr_t off;
db_find_task_sym_and_offset(addr,&name,&off,task);
if (off == 0)
db_printf("\r%s:\n", name);
db_printf("%#n: ", addr);
for (sz = 0; sz < leader; sz++)
db_putchar(' ');
db_prev = addr;
nitems = items;
}
switch (c) {
case 'p': /* Addrs rendered symbolically. */
if( size == sizeof(void *) ) {
char *symName;
db_addr_t offset;
items = 1;
value = db_get_task_value( next_addr,
sizeof(db_expr_t), FALSE, task );
db_find_task_sym_and_offset( value,
&symName, &offset, task);
db_printf("\n\t*%8x(%8X) = %s",
next_addr, value, symName );
if( offset ) {
db_printf("+%X", offset );
}
next_addr += size;
}
break;
case 'r': /* signed, current radix */
for (sz = size, next_addr = addr;
sz >= sizeof (db_expr_t);
sz -= sizeof (db_expr_t)) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr,
sizeof (db_expr_t),
TRUE,task);
db_printf("%-*r", width, value);
next_addr += sizeof (db_expr_t);
}
if (sz > 0) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr, sz,
TRUE, task);
db_printf("%-*R", width, value);
next_addr += sz;
}
break;
case 'x': /* unsigned hex */
for (sz = size, next_addr = addr;
sz >= sizeof (db_expr_t);
sz -= sizeof (db_expr_t)) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr,
sizeof (db_expr_t),
FALSE,task);
db_printf("%-*x", width, value);
next_addr += sizeof (db_expr_t);
}
if (sz > 0) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr, sz,
FALSE, task);
db_printf("%-*X", width, value);
next_addr += sz;
}
break;
case 'z': /* signed hex */
for (sz = size, next_addr = addr;
sz >= sizeof (db_expr_t);
sz -= sizeof (db_expr_t)) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr,
sizeof (db_expr_t),
TRUE, task);
db_printf("%-*z", width, value);
next_addr += sizeof (db_expr_t);
}
if (sz > 0) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr,sz,
TRUE,task);
db_printf("%-*Z", width, value);
next_addr += sz;
}
break;
case 'd': /* signed decimal */
for (sz = size, next_addr = addr;
sz >= sizeof (db_expr_t);
sz -= sizeof (db_expr_t)) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr,
sizeof (db_expr_t),
TRUE,task);
db_printf("%-*d", width, value);
next_addr += sizeof (db_expr_t);
}
if (sz > 0) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr, sz,
TRUE, task);
db_printf("%-*D", width, value);
next_addr += sz;
}
break;
case 'U': /* unsigned decimal */
case 'u':
for (sz = size, next_addr = addr;
sz >= sizeof (db_expr_t);
sz -= sizeof (db_expr_t)) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr,
sizeof (db_expr_t),
FALSE,task);
db_printf("%-*u", width, value);
next_addr += sizeof (db_expr_t);
}
if (sz > 0) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr, sz,
FALSE, task);
db_printf("%-*U", width, value);
next_addr += sz;
}
break;
case 'o': /* unsigned octal */
for (sz = size, next_addr = addr;
sz >= sizeof (db_expr_t);
sz -= sizeof (db_expr_t)) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr,
sizeof (db_expr_t),
FALSE,task);
db_printf("%-*o", width, value);
next_addr += sizeof (db_expr_t);
}
if (sz > 0) {
if (nitems-- == 0) {
db_putchar('\n');
goto restart;
}
value = db_get_task_value(next_addr, sz,
FALSE, task);
db_printf("%-*o", width, value);
next_addr += sz;
}
break;
case 'c': /* character */
for (sz = 0, next_addr = addr;
sz < size;
sz++, next_addr++) {
value = db_get_task_value(next_addr,1,
FALSE,task);
if ((value >= ' ' && value <= '~') ||
value == '\n' ||
value == '\t')
db_printf("%c", value);
else
db_printf("\\%03o", value);
}
break;
case 's': /* null-terminated string */
size = 0;
for (;;) {
value = db_get_task_value(next_addr,1,
FALSE,task);
next_addr += 1;
size++;
if (value == 0)
break;
if (value >= ' ' && value <= '~')
db_printf("%c", value);
else
db_printf("\\%03o", value);
}
break;
case 'i': /* instruction */
next_addr = db_disasm(addr, FALSE, task);
size = next_addr - addr;
break;
case 'I': /* instruction, alternate form */
next_addr = db_disasm(addr, TRUE, task);
size = next_addr - addr;
break;
default:
break;
}
if (db_print_position() != 0)
db_end_line();
break;
}
}
addr = next_addr;
}
db_next = addr;
}
